Thermally-insulated structure.



F. PATH-1. THERMALLY INSULATED STRUCTURE.

APPLICATION FILED AUG-2811911.

Patented Mar. 14, 1916.

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THEBMAILY-INSULATED STRUCTURE specification item1-erstem. Patnted Mal-,14,191a

Application led'ugust 28, 1911. Serial No. 646,493.

To all 'whom t may concern: A

Be it known that I, FREUPATEE, a eltizen of the United States, residing at Denver, in the county of Denver and Stateof Lic lolorado, have 'invented certain new and useful Improvements in Thermally-Insulated Structures, of .which the following is` a specification.

This invention relates to an improvement I in thermally insulated structures constructed forthe purpose of protecting from heat or cold and Ihave shown several devices in the appended drawings embodying my im roved construction.

n the drawings Figure 1 shows a longitudinal section of a refrigerator. Fig. 2 shows a detail cross section of my improved construction. Fi 3A shows a front elevation of the refrigerator shown invFig. 1,--4

the front-being broken away. Fi 4 shows la transverse cross section on-the e A, A of Fi 4 1. Fig. 5 ,is a longitudinal section o an ice-boxr embodying my construction.

Like reference 'characters refer to similar elements throughout the drawings.

In Fig. 2 I have shown' a detail of the preferred form of my thermal insulating structure having a wood .or asbestos board center foundation member C t'o either side of which is secured and spaced therefrom, metal or other lathing or linin members B shown ribbed at B', the ribs being secured by nails b or other means. This method of .securing the` lining or lathing leaves dead air Spaces B. Secured to the outer sides of the lining members B is a coatin of asbestos preferably in the form of as tos 'plaster A. This provides a thoroughly eilicient and practical insulatin structure in which the asbestos linings coperate with the dead air spaces B to thoroughly insulate the interior of any structure embodying this improved construction.

In Fig. 1 I-h'ave shown this construction applied to a refrigerator intended for use without ice, preferably built on a concrete or other solid foundation 10 and resting on a supporting frame 11 having screened openings 12 formed therein. The body of the structure proper is formed with compartments 13 having the screened or other bottom plates 14 suitably supported upon brackets 15 and having the sides thereof apertured as shown at 13 for a Vpurposeto be described hereafter. l

-Surroundin the lining of the compartments 13 is a ayer of absorbent material 23.

Adjacent the bottom of this lining 23 is a trough 24:V having an outlet pipe 25, as shown in Fig. 1 of the drawings. Adjacent the top of the lining 23 is a trough 2l having dependlng supply tubes 22.

Secured to the interior of the upper part of the evaporative refrigerator is a fluid supply tank 16v supplied with fiuid through a supply pipe 17 leading, from a filling' pout 18 located on the side, out of the strucure. y

.fIhe supply tank 16 is provided with a suitable gage 20 and has outlet pipes 19 adapted to supply the iiuid from the tank- 16 to the troughs 21, whence it will be distrlbuted to the top of the absorbent material 23 and percolate therethrough to the vbottom. of the saine where any excess of fluid will be collected by the trou h 24 and conducted to the outside through t e pipe 25.

'Suitable doors 26 are secured to the refrigerator andpermit accession to the chambers 13 and supply tank 16. Located in the upper part of the structure are Ventilating screened openings 27 similar to the openings l2. The opening 27 in conjunction withthe openings 12 allows the circulation-of warm air through the refrigerator, which 'coming in contact with the absorbent material saturated as it is with the cooling fluid will cause evaporation of the moisture therefrom and, as a well-known physical fact, lowers the temperature of the interior of the refrigerator very considerably. By 'this means I provide a structure in which the contents are cooled by the action of evaporative fluid from absorbent material, the structure being thoroughly insulated from the outside except for the desired ciroil" the melted ico should the latter be used,

otherwise .the device is similar to the structure shown in Figs. 1 to d.

-I do not desire to iimit myself to the form of my lstructure or device shown in the drawings or described in the speciiication beyond the scope of the appended claims.

I claim:

l. A thermally insulated structure com prising a central wall of asbestos board or 2. A thermally insulated structure comprising a central wall of asbestos board, ribbed metal lathing secured to each Side of said central wall forming dead air spaces on opposite sides of said central board, said -air spaces having a staggered relation to prevent direct conduction of heat through the board from the ribs on one side to those on the other, and asbestos composition se- 25 cured on the outer side of said lathing.

In testimony whereof, I have subscribed my name.

FRED PATEE. Witnesses: t

S. E; PRITGHARD, ONNm Trims. 

